Global Patent Index - EP 3672038 A1

EP 3672038 A1 20200624 - PERMANENT MAGNET ROTOR AND ITS MANUFACTURING METHOD

Title (en)

PERMANENT MAGNET ROTOR AND ITS MANUFACTURING METHOD

Title (de)

PERMANENTMAGNETROTOR UND DESSEN HERSTELLUNGSVERFAHREN

Title (fr)

ROTOR À AIMANT PERMANENT ET SON PROCÉDÉ DE FABRICATION

Publication

EP 3672038 A1 20200624 (EN)

Application

EP 19211480 A 20191126

Priority

JP 2018223567 A 20181129

Abstract (en)

A method for manufacturing a rotor magnet of a rotor of a permanent magnet motor according to the present embodiment, the rotor magnet being constituted of a plurality of main magnets and a plurality of auxiliary magnets, the main magnets being magnetically oriented in a first direction, the auxiliary magnets being magnetically oriented in a second direction, the auxiliary magnets being disposed respectively between the main magnets, includes; in the rotor, forming a divided resin molded part by resin-molding the main magnets and the auxiliary magnets, the main magnets and the auxiliary magnets being arrayed in an arc-like shape whose circumference is divided into a plurality of parts, the main magnets being not yet magnetized, the auxiliary magnets being magnetized in the second direction; magnetizing the main magnets of the divided resin molded part in the first direction; and connecting a plurality of divided resin molded parts in a circular shape.

IPC 8 full level

H02K 15/03 (2006.01); H02K 11/215 (2016.01); H02K 15/12 (2006.01)

CPC (source: CN EP US)

H02K 1/27 (2013.01 - CN); H02K 1/274 (2013.01 - US); H02K 1/2786 (2013.01 - CN); H02K 1/2793 (2013.01 - CN); H02K 11/215 (2016.01 - EP); H02K 15/03 (2013.01 - CN EP US); H02K 15/12 (2013.01 - EP)

Citation (applicant)

JP 2012050179 A 20120308 - ASMO CO LTD

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3672038 A1 20200624; CN 111245123 A 20200605; CN 111245123 B 20220726; JP 2020089178 A 20200604; JP 2023162451 A 20231108; US 2020177036 A1 20200604

DOCDB simple family (application)

EP 19211480 A 20191126; CN 201911178406 A 20191127; JP 2018223567 A 20181129; JP 2023146854 A 20230911; US 201916693424 A 20191125